English
Related papers

Related papers: On the Existence of Odd Perfect Numbers

200 papers

In this paper, we make some conjectures on prime numbers that are sharper than those found in the current literature. First we describe our studies on Legendre's Conjecture which is still unsolved. Next, we show that Brocard's Conjecture…

Number Theory · Mathematics 2009-06-02 Adway Mitra , Goutam Paul , Ushnish Sarkar

Two infinite sequences A and B of non-negative integers are called additive complements, if their sum contains all sufficiently large integers. Let $A(x)$ and $B(x)$ be the counting functions of A and B. In this paper, we extend the results…

Number Theory · Mathematics 2022-05-10 Fang-Yu Ma

In this paper, we define an ordering relation for a set of complex numbers, and research the properties and theorems of the ordering, solve some simple complex inequalities with the ordering.

General Mathematics · Mathematics 2010-03-26 Sun Daochun , Gu Zhendong , Liu Weiqun , Yue Chao

This article consists of three chapters.In Chapter 1, it is determined by the consecutive odd numbers, and study to the intrinsic properties of a class of matrix sequence. Through the establishment of matrix online number concept,…

General Mathematics · Mathematics 2013-06-13 Baoshan Zhang

Ozeki and Prodinger showed that the odd power sum of the first several consecutive Fibonacci numbers of even order is equal to a polynomial evaluated at certain Fibonacci number of odd order. We prove that this polynomial and its derivative…

Combinatorics · Mathematics 2015-02-12 Brian Y. Sun , Matthew H. Y. Xie , Arthur L. B. Yang

A rationality condition is derived for the existence of odd perfect numbers involving the square root of a product, which consists of a sequence of repunits, multiplied by twice the base of one of the repunits. This constraint also provides…

Number Theory · Mathematics 2007-05-23 Simon Davis

We prove that there are infinitely many $n$ such that $\omega(n+k) \ll \log k$ for all integers $k \ge 2$. This improves on a result of Tao-Ter\"{a}v\"{a}inen (2025), who has $O(k)$ in place of $O(\log k)$. As corollaries, we make progress…

Number Theory · Mathematics 2026-04-17 Cheuk Fung Lau

In the paper we complete a case by case proof of Reeder's Conjecture started in our previous work, proving the conjecture for simple Lie algebras of type $D$ and for the exceptional cases.

Representation Theory · Mathematics 2021-08-17 Sabino Di Trani

Acquaah and Konyagin showed that if $N$ is an odd perfect number where $N= p_1^{a_1}p_2^{a_2} \cdots p_k^{a_k}$ where $p_1 < p_2 \cdots < p_k$ then one must have $p_k < 3^{1/3}N^{1/3}$. Using methods similar to theirs, we show that…

Number Theory · Mathematics 2018-12-18 Joshua Zelinsky

We say a natural number~$n$ is abundant if $\sigma(n)>2n$, where $\sigma(n)$ denotes the sum of the divisors of~$n$. The aliquot parts of~$n$ are those divisors less than~$n$, and we say that an abundant number~$n$ is pseudoperfect if there…

Number Theory · Mathematics 2015-04-13 Douglas E. Iannucci

In this paper, I proved that $$N=p_1+p_2+2p_3, p_1\sim N/2, p_2\sim N/2, p_3=o(N),$$ where $N$ is a large even number, and $p_i\ (i=1,2,3)$ are odd primes.

Number Theory · Mathematics 2014-04-15 Jin Li

Dickson conjectured that a set of polynomials will take on infinitely many simultaneous prime values. Later others, such as Hardy and Littlewood, gave estimates for the number of these primes. In this article we look at this conjecture,…

History and Overview · Mathematics 2021-03-09 Chris K. Caldwell

The number of primes of a kind x^2+1 is infinite.

General Mathematics · Mathematics 2008-02-12 V. Govorov

Erd\H{o}s posed the question whether there exist infinitely many sets of consecutive numbers whose least common multiple (lcm) exceeds the lcm of another, larger set with greater consecutive numbers. In this paper, we answer this question…

General Mathematics · Mathematics 2024-10-15 Stijn Cambie

There has been always an ambiguity in division when zero is present in the denominator. So far this ambiguity has been neglected by assuming that division by zero as a non-allowed operation. In this paper, I have derived the new set of…

General Mathematics · Mathematics 2011-07-07 Mohd Abubakr

We discuss the phenomenon where an element in a number field is not integrally represented by a given positive definite quadratic form, but becomes integrally represented by this form over a totally real extension of odd degree. We prove…

Number Theory · Mathematics 2025-04-17 Nicolas Daans , Vítězslav Kala , Jakub Krásenský , Pavlo Yatsyna

Treating divergent series properly has been an ongoing issue in mathematics. However, many of the problems in divergent series stem from the fact that divergent series were discovered prior to having a number system which could handle them.…

General Mathematics · Mathematics 2020-01-23 Jonathan Bartlett , Logan Gaastra , David Nemati

Let \sigma(n) be the sum of divisors of a positive integer n. Robin's theorem states that the Riemann hypothesis is equivalent to the inequality \sigma(n)<e^\gamma n\log\log n for all n>5040 (\gamma is Euler's constant). It is a natural…

Number Theory · Mathematics 2013-02-27 Sadegh Nazardonyavi , Semyon Yakubovich

In contrast to finite arithmetic configurations, relatively little is known about which infinite patterns can be found in every set of natural numbers with positive density. Building on recent advances showing infinite sumsets can be found,…

Combinatorics · Mathematics 2025-05-15 Bryna Kra , Joel Moreira , Florian K. Richter , Donald Robertson

We give a more strong heuristic justification of our conjecture on the excess of the odious primes.

Number Theory · Mathematics 2011-11-10 Vladimir Shevelev